获取电力系统运行方式的多平衡机潮流模型

发布时间：2018-04-05 15:09

本文选题：电力系统　切入点：运行方式　出处：《电力系统自动化》2014年16期

【摘要】：提出了制定大规模电力系统运行方式的三种多平衡机潮流模型。通过设置多台平衡机分摊全系统不平衡功率来提高潮流计算收敛域。与常规潮流计算方法相比,只需采用控制方程替换平衡机的功率平衡方程即可得到适定的多平衡机潮流方程式。所提出的模型不但可以扩大潮流求解的收敛域,还可以满足对运行方式的特殊要求:维持中枢点电压为指定值,灵活控制各平衡机出力比例,实现多区域互联系统断面功率控制。所提出的多平衡机潮流模型阶数与常规潮流模型相同,因此其求解的复杂性保持不变。IEEE 162节点系统、陕甘1 265节点互联系统以及国内实际21 479节点系统的计算结果验证了所提出模型的正确性和有效性。
[Abstract]:In this paper, three kinds of power flow models of multi-balancing machines are proposed to establish the operation mode of large-scale power system.The convergence region of power flow calculation is improved by setting multiple balancing machines to allocate the unbalanced power of the whole system.Compared with the conventional power flow calculation method, the power balance equation of the balancer can be obtained by replacing the power balance equation of the balancer with the control equation.The proposed model can not only expand the convergence region of the power flow solution, but also meet the special requirements of the operation mode: maintain the central point voltage as the specified value, and flexibly control the output ratio of each balancing machine.The cross section power control of multi-area interconnected system is realized.The order of the proposed multi-balancer power flow model is the same as that of the conventional power flow model, so the complexity of its solution remains the same as that of the IEEE 162-bus system.The correctness and validity of the proposed model are verified by the calculation results of Shaanxi and Gansu 1,265 bus interconnected systems and the actual 21,479 bus systems in China.
【作者单位】：西安交通大学电气工程学院;中国电力科学研究院;
【基金】：国家电网公司大电网重大专项资助项目(SGCC-MPLG030-2012)~~
【分类号】：TM744

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